.not-found{ 
    background-color: #f0f2f5; 
    height: 100%;
     .left { 
         height: 100%; 
         background: url('./images/404.png') no-repeat center;
         } 
         .right { 
             padding-left: 50px;
             margin-top: 150px; 
            h1 { 
                 font-size: 35px; 
                } 
            h2 { 
                 margin-bottom: 20px; 
                 font-size: 20px; 
            }
   }
}
